Ampule



June 19, 1934. V A s rr Re. 19,219

AMPULE Original Filed July 16, 1927 I N VEN TOR.

' A.E. S/W/TH ATTORNEY.

- Reissued 1.... 19, 1934 n j I Re, 19,219

UNITED STATES "PATENT OFFICE.

AMPULE Arthur E. Smith. Lo! Angela, Calif.

Original No. 1,770,220, dated July 8, 193, No. 206,242, July 16, 1927. Application for reissue July 5, 1932. Serial No. 620,930

4 Claims. (01. 128218) This invention relates to a medical container Within the cap I provide a recess 22 which exor ampule. tends into the tip 20 and is approximately the The general object of this invention is to prosame size as the adjacent opening in the neck 12 vide an improved drug containing ampule whereof the ampule. The cap is preferably made of a g in the drug is hermetically sealed in the ampule. good grade of rubber vulcanized to the desired 60 Another object of the invention is to provide a degree of hardness. When the cap 1'7 is placed drug containing ampule having an improved on the ampule it is slightly distorted so that the form of stopper therein for ejecting the contents groove 16 tightly engages the bead 16 and the skirt of the ampule. 19 of the cap tightly engages the tapered neck 10 A further object of the invention is to provide 12, thus forming a fluid tight seal between the 66 an ampule having novel means thereon for cap and the ampule. acting with a syringe to form a fluid tight seal The stopper 15 in the open end 14 of the ambetween the syringe and the ampule. pule comprises a body portion 24 provided inter- A specific object of the invention is to promediate its length with an outer annular groove 15 vide a novel closure for the discharge end of an 25. The forward end of the stopper is provided 70 ampule. with a protuberant conical tip 26 and a conical Other objects and advantages of the invention groove 27 at the juncture of the tip 26 and the will be apparent from the following description body 24. The groove 2'1 forms a feather edge takeninconnection with the accompanying drawon the front face of the body 24 which, when m ing wherein: the stopper 15 is moved within the body 11 of the 75 Fig. 1 is a side elevation of my improved ampule. ampule, is forced by the pressure of the fluid Fig. 2 is an enlarged central longitudinal secto tightly engage the inner walls of the body 11, tion through my improved ampule. thus forming a fluid tight seal between the am- Flg. 3 is a view similar to Fig. 2 with the tip pule body and the stopper. This seal prevents g removed from the closure and the stopper moved fluid in the ampule from leaking past the stopper 80 towards, the discharge end of the ampule to eject when the contents of the ampule are being the contents therefrom. ejected.

Fig. 4 is a front elevation of the discharge end The conical tip 26 of the stopper forces out of the ampule as shown in Fig. 3. more of the liquid in the ampule than would a Fig. 5 isafragmentary central longitudinal secflat ended stopper, since the conical end enters 86 tion of the ampule showing the stopper moved to the neck 12 as shown in Fig. 5, thereby assuring its fullest discharge position, and an approximately full discharge of the contents Fig. 6 is a section of the cap. Y of the ampule. The stopper like the cap 1'! Referring to the drawing by reference charis preferably made of a good grade of rubber acters I have indicated my improved ampule genvulcanized to the desired hardness. 00

erally at 10. This ampule is primarily adapted To prepare a filled ampule for use it is only for us in a hypodermic syringe of the pu e necessary to remove the tip 20 of the cap 1'7 by con a p The ampule may be of any decutting it at the juncture with the body portion. Bind type but is Preferably 3 size 11015 the This exposes the recess 22 which then forms amount of drug necessary for one injectionan aperture through which the contents of the The ampule 10 which is preferably made of am ule may be expelled when the stopper 15 is glass, comprises an elongated hollow cylindrical mosed towards the neck body portion 11 terminating at one end in a're- After removing the tip 20 of the ampule cap duced tapered open ended neck 12. The other s end 0! the ampule is preferably left straight and the ampule. may be inserted into the barrel of a Q syringe, the cap 17 engaging the syringe adjag a s g ggm and is adapted to be cent the discharge end thereof and the stopper Adjacent the and of the tapered neck 12 and 15 being adapted to be engaged by a plunger rod integral therewith I provide an outer annular in the syringe' 0 head The open and of the neck 12 is adapted To eject the contents of the ampule after it is I to be cloud by a cap 17 which comprises a body placed in an operative position in a syringe the portion 18 including a skirt 19 and a reduced tip Stopper 15 is moved within the ampule body 11 20. Within the body portion 18Imayprovidean ds t e neck 12, thus causing t e pp annular groove 21 in which the annular bead 16 to act as a piston to expel the contents of the on the end of the neck 12 is positioned. ampule. 11.

p'el the contents ofthe ampule the cap 1'! will be iorced into very tight engagement with the thedischsrgeendoftheampuleandthesyringe. 'lheampulemaybeiilledbeforeorai'terthe eaporstopperisinsertedinamde'siredmam From the foregoing description it will be apuse. L

Having thus described 'my invention. I claim:

1. Anampule comprising a hollow body portion constricted atone end to form a tapered an aperture in said neck communicating interior of said hollow body, an external said tapered neck, a resilient cap arranged on said neck and engaging the surface and the front end of said neck. cap extending beyond the front whereby when a portion of said is cut away communication is formed with through said cap to the interior of said ampule.

2.Anampule comprising abody portion concted' atoneendtoformatapered neck, an externalbeadonsaidnecharesilientcamsaid capinehidingabodyportionandatimarecess insaidbodyportioniittedoversaidne'ck,a second recess in which said head is positioned, athirdre'cessinsaidbodyportionextending into said tip, whereby when said tip is cut away at its with said body portion an aperaspressureisappliedonthestopperlbtoexmore c ture isiormed through said cap aflording communication with the interior of said ampule.

3. An ampule comprising a hollow body, a re-: silient closure for one end of said body, said closure including a body portion and an integral, reduced, sever-able tip, means providing a fluid tight Joint between said ampule and said closure, said means comprising a resilient peripheral, outwardly extending head on said closure, one walloisaidbead'engagingtheextremeendof the ampule, said body portion and said tip having communicating recesses, whereby when said tipissevered,anapertureis formedthroughsaid closure aiiording communication with the hollow body of the ampul'e.

4.-An ampule, a closure therefor, said closure comprising a resilient cylindrical body portion directly engaging the ampule, said body having a radially outwardly directed integral portion thereon. said outwardly directed portion directly mm: and substantially covering the entire discharg end face of the ampuie to prevent inward movement of the closure away from the discharge end of the ampule and serving to maintain said parts in fluid tight engagement with each other, a reduced integral tip portion on the closure in advance of said outwardly directed portion, said body having a recess therein in communication with the interior of the ampule andsaidtip having arecessinalignment with the body recess. the outer portion of said tip being removable adjacent to the inner end of the outwardlyjirected portion, whereby to establish communfcation between the interior of said ampule through the recess in said tip to the exterior of the ampule. r ARTHUR E. SMITH. 

